Casing-lock for roller-bearings.



0. s. ocxwo-on. CASING LOCK FQR ROLLER BEARINGS. APPLICATION FILED JAN.4, 1912.

1,058,767.; Batgnted Apr. 15, 1913.

ARLE slowness o KEWARK, NEWAIERSEYMASSIGNQB T0. m: muss 'snenine'conmnr,or memos, new assess, .a-conroaarron on NEW JERSEY.

CASING-LUCK non ROLLER-renames.

' Specification a Letters Patent.

Patented Apr. 15,1913.

Application filed January 4, 1912. Serial no. 669,450.

Tooll whom it may concern:

Be it known that 1, CHARLES S. LOOK woon, a citizen of the UnitedStates, re-

siding at 289 vMarket street, Newark, county of Essex, and State of NewJ ersey, have in plication to a shaft, a casing inclosing a set of rollsupon the hub, and the exterior of the casing of cylindrical form adaptedto fit into a cylindrical socket in any mechanism where such abearingmay be re uired. In such bearings it is common to ma e the hub of doubleconical shape with the bases of the cones at the'iniddle of the hub, therolls of corresponding tapering form, and the casing. with two taperingseats adapted to embrace the rolls when assembled upon the hub.

For applying the casing to two sets of rolls upon'a doubly conical hub,it is necessary that one of the seats in the casing should be removable,and in order to'inake such removable seat adjustable within the hub itis common to make one end of the casing with an internally threaded,shell and to screw such section within the shell.

The present invention comprises a novel means for locking the movablesect-ion within the casing by means of a spring-pawl,

and the novelty of the construction consists in the formation of theremovable inner section-witha peripheral slot closed at its ends andsides, having a transverse perforation and a leaf spring-pawl secured insuch slot to engage the ratchet-teeth and means operating through theperforation to depress the pawl when required. e

The spring-pawl may be held in the slot by a pin ext-ended across theslot and a perforation is formed through the outer wall of theslotadjacent to the edge of the ratchet, so that apin may be insertedthere in to press one end of the pawl outwardly and retract its workingend from engagement with the ratchet-teeth in the' shell.

The invention is shown in the annexed drawing, in which- Figure 1 is alongitudinal section eta bearing provided with the improvements; Flg. 21s anend view of suohbe'a'rillg with a portion of the innerand, outersections broken away to the nearer side or the peripheral slot; and Fig.3 is an edge view of the bearing with the shell broken away to exposethe periphery of the removable section. Figs. 2 and 3 show a leaf-springwith one working end operating as aratohetpawl. Fig. t is an end view ofthe inner and outer sections showing a leaf-'s' tin having two workingends so as to loct the inner section when turned iii-either direction;Fig. 5 is an ed e view of the inner sectionrepresented in ig. 4. v

is. Figs. 1 to 3,1; designates the hub inving double conical seats 6with rolls 0 and 0. fitted thereto; the hub having a bore d for securingit upon a shaft. The casing; with cylindrical exterior, is provided atone on with the tapering, seat at fitted to embrace the rolls a and atthe other end with the cylindrical shell 6 having internal ratchetteethf near its outer end. Adjacent, to the ratchet-teeth, farther within theshell,

a screw-thread g; and a movable sectioh d having a tapering sea toembrace the rolls 0 is provided with exterior thread to fit the thread9, and with'a peripheral slot h whose outer wall 2' is formed with aperforation j; The slot is closed at both sides and at both' ends, and aleaf-spring 1c is fitted to rest upon the bottom of the slot and heldfrom displacement therein by pins Z,- Z'. The leaf spring forms a singleratchet-pawl by the engagement of its free 'end with the ratchetteeth f,being sustained by elastic pressure upon the bottom of the slot. Theperforation 7' is disposed so as to intersect the leafspring, thusexposing its edge to view, and

a pointed pin on shown in Fig. 1 may thus be wedged against the outerside of theratchetespring to crowd its working end out of theratchet-teeth j". The inner section d is provided with holes a toreceive a spanner by which it may be turned within the shell e in thedirection of the arrow 0, to adjust the casing to the rolls. During suchadjustment, the ratchet-pawl clicks over the ratchet-teeth f andprevents the inner section from turning backwardly' when adjusted.

It will be observed that no part of the ratchet mechanism is exposedupon the exof any projections upon the casing prevents the rotation ofadjacent parts of the mechanism from accidentally engaging such projection's and breaking them or causing undesirable movements of theparts. The single ratchet pawl shown in Fig. 2 is not however adapted topositively lock the inner section against rotation in both directions.

Figs. 4 and 5 show means to positively prevent the rotation of the innersection in either direction when adjusted. These figures show theleaf-spring arched in the middle to. clear the bottom of the slot andhaving shoulders k at opposite sides of the arched portion to rest uponthe bottom of the slot, to hold the ends 7c of the spring in elasticengagement with the ratchet-teeth f. The spring is held from endmovement by a lat-- eral enlargement at. the middle of its length fittedto a lateral recess [2 in the wall of the slot, and each end of thespring is held in working position by a pin p. The arch at the middle ofthe spring extends across the perforation j through the outer wall ofthe slot, thus permittingthe tapering pin m to be wedged beneath theinner side of the arch, thus prying thearch outwardly and moving theratchet ends of the spring but of engagement with the ratchet-teeth f.The pins,

19 serve as-fulcra, by their cont-act with the outer sides of thespring, when thus pressed by-the wedge-shaped pin. With the double pawlthus retracted from the ratchet-teeth f, the inner section at can beproperly adjusted, and the withdrawal of the wedge then permits bothends of the spring to engage the ratchet-teeth to positively preventrotation in either direction.

It will be observed that with the construction shown in Fig. 2, theinsertion of the pin or wedge m operates upon the leaf-spring todisengage itfrom the ratchet-teeth 7 while it performs precisely thesame function in Fig. 4, retracting both ends of the leaf-springsimultaneously by pressing the middle of the leaf-spring upwardly. Theconstruction thus rforms the same function whether the leaf-spring bemade to engage the ratchetteeth at one or both ends.

a tapering roll-seat upon its inner side, an

provided with a peripheral 'slot inclosed upon both ends and'sides andhaving' a transverse perforation through its ou 1' wall, a leaf-springwithin the slot extended across the said perforation and supported uponthe bottom of the slot and'bent to extend across the said perforationand its end pressed elastically upon the ratchet-teeth, and means forretaining the spring in the slot, whereby means may operate through theperforation to retract the end of the leafspring from the ratchet-teeth.y

2. In a roller bearing, an adjustable selflocki ng casing having anouter section with a cylindrical exterior and tapering roll-seat 03within one end and a shell e upon the other end and the shell providedinternally with a screw-thread g and an adjacent series of ratchet-teethif, an inner section (1 fitted adjustably to such screw-thread andhaving a tapering roll-seat upon its inner side, and provided with aperipheral slot h inclosed upon both ends and sides and having atransverse perforation through its outer wall and a lateral recess atthe middle of its length, a double-ended leaf-spring within the slothaving an enlargement fitted to the said recess, the spring beingextended across the said perforation and having its ends bent outwardlyto engage the ratchet-teeth, and pins inserted through the wall of theslot to retain the spring therein, the spring'thus operating as a doubleratchet, substantially as herein set forth. V

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

CHARLES S. LOCKWOOD.

Witnesses:

G. C. S'run'rs, ETHEL WILLIAMS.

